<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>bootcss2</title>
    <link rel="stylesheet" href="static/css/bootstrap.min.css">
</head>
<body>
<div>
    <img class="img-rounded" src="https://img02.sogoucdn.com/app/a/100520021/591113db161f19f4ded069db664eeafc">
</div>
<div>
    <img class="img-circle" src="https://img02.sogoucdn.com/app/a/100520021/591113db161f19f4ded069db664eeafc">
</div>
<div>
    <img class="img-thumbnail" src="https://img02.sogoucdn.com/app/a/100520021/591113db161f19f4ded069db664eeafc">
</div>
<!--
<form class="form-inline" action="">
    <div class="form-group">
        username: <input class="form-control" type="text">
    </div>
    <div class="form-group">
        password: <input class="form-control" type="password">
    </div>
    <div class="form-group">
        <input class="btn btn-primary" type="submit" value="login">
    </div>
</form>

<form action="">
    <div class="form-group">
        username: <input class="form-control" type="text">
    </div>
    <div class="form-group">
        password: <input class="form-control" type="password">
    </div>
    <div class="form-group">
        <input class="btn btn-primary" type="submit" value="login">
    </div>
</form>
-->
</body>
</html>